81105021

素因数分解:

$3^2\times {\mathrm{31}}^1\times {\mathrm{149}}^1\times {\mathrm{1951}}^1$

素因数の和:2137

約数の個数: 24

約数和(自身を含む): 121804800

約数和(自身を除く): 40699779

約数列:

[1, 3, 9, 31, 93, 149, 279, 447, 1341, 1951, 4619, 5853, 13857, 17559, 41571, 60481, 181443, 290699, 544329, 872097, 2616291, 9011669, 27035007, 81105021]

約数ペア:

[(1, 81105021), (3, 27035007), (9, 9011669), (31, 2616291), (93, 872097), (149, 544329), (279, 290699), (447, 181443), (1341, 60481), (1951, 41571), (4619, 17559), (5853, 13857)]